baber/WOPTO huggingface dataset:
Patent GB-1111835-A (GB)
Title: Improvements in thermostatically-controlled valves for controlling the supply of gas to a gas-heated appliance
IPC: F16K31/68
Filed: 1965-08-25
Abstract: 1,111,835. Valves. JUNKERS & CO. G.m.b.H. 25 Aug., 1965 [2 Sept., 1964], No. 36433/65. Heading F2V. A thermostatically-controlled valve in which a thermal element 11 actuates a valve member 17 through a snap-action spring 15, comprises a bush 20, located between the members 15 and 17, displaceably mounted on a rod 19, coaxial to the valve seat, having an eccentric projection 22 for engaging the member 17 so that, during initial lifting movement of the bush, the valve member is lifted off the seat at one side thereof.
Patent GB-898466-A (GB)
Title: Fluid controlling gate valve
Inventor: BOURTON AUBREY VAUGHAN WALTER
IPC: F16K3/18
Filed: 1957-11-25
Abstract: 898,466. Valves. INTERNATIONAL FURNACE EQUIPMENT CO. Ltd. Nov. 18, 1958 [Nov. 25, 1957], No. 36609/57. Class 135. The casing of a gate valve is formed of a three-part casting which houses the twoclosure portions that are threaded to parts 35 on opposite sides of a carrier embodying a plate 36 engaging guides 37 in the casing. A pair of arms 39 extending from the parts 35 are pivoted to a pair of links 40, the opposite ends of which are pivotally connected to an axially movable screw-threaded shaft 41. Mounted on the pins interconnecting the arms 39 and links 40 are rollers 43 that abut cam surfaces 44a on plates 44 so that initial opening motion of the shaft 41 causes the cams and rollers to move angularly and lift the closure portions away from the seatings towards the carrier; cotinued movement of the shaft 41 then draws the carrier and closure portions laterally away from the seats. The reverse sequence occurs when turning the shaft 41 in the valve closing direction. Adjustable stops are provided on the plate 36 to prevent the closure portions from moving angularly with the carrier.
Patent GB-411057-A (GB)
Title: Improvements relating to bi-fuel internal combustion engines
IPC: F02M1/00
Filed: 1933-12-29
Abstract: 411,057. Spray carburetters igniting; valve gear. BOUDET, R. P. M., Cahuzac-sur-VÞre, Tarn, France. Dec. 29, 1933, No. 36636. Convention date, Dec. 31, 1932. [Classes 7 (iii), 7 (iv), and 7 (vi).] Two carburetters one 6 for heavy oil and the other 12 for petrol deliver to the inlet manifold through a three-way conduit 22 ; the throttles 15, 14 are connected together and moved by one rod 25, so that as one opens the other closes. A spring stud in a guide 26 holds the rod in its limiting or intermediate positions, thereby permitting flow from either carburetter or from both. The heavy oil is heated electrically or by the exhaust before entry to the carburetter. Igniting in.-Ignition of the main charge is normally effected by a small readily ignitable charge drawn from the petrol carburetter 12 or from a separate source into a chamber 28 fitted into the sparking plug orifice ; the chamber has a coned outlet nozzle 45 and plug 44 which fires the charge in the chamber. The outlet from the petrol carburetter may have a throttle worked with the throttles 15, 14. Two of these chambers may be held in place by a stirrup 40, Fig. 4, and cross piece 43. If desired a sparking - plug may temporarily replace the chamber igniter. Valve gear.-The inlet valve 31 to the chamber may be worked off a face cam carried by the ignition interrupter spindle which is driven off the valve gear ; or the valve may be worked by electromagnetic, hydraulic or pneumatic means.
Patent GB-397007-A (GB)
Title: Improvements in or relating to thermionic valve oscillation generators
IPC: D06P3/30
Filed: 1932-12-29
Abstract: 397,007. Valve generating circuits. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 29, 1932, No. 36782. Convention date, Dec. 29, 1931. [Class 40 (v).] A two-valve generator of the multi - vibrator type is characterized by the substitution of a piezo-electric crystal Kr for one of the normal coupling - capacities, the other being replaced by a tapping from the grid of valve I to the plate supply-battery of valve II. In Fig. 3 the anode resistance Ra1 is replaced by a tuned circuit L, C, back-coupled through a condenser to the grid of the first valve. The second valve may then be of the high-mu screen-grid type ; and a common high-tension supply is used. In this way the different inherent frequencies of the control crystal can be utilized by tuning the circuit L, C, each separate frequency being indicated by minimum current in an ammeter A inserted in the output circuit of the first valve. The Specification as open to inspection under Sect. 91 describes the invention as applied to a single-valve oscillator with two grids. This subject-matter does not appear in the Specification as accepted.
Patent GB-344490-A (GB)
Title: Process of manufacture of an emulsion of tar for roadmaking
IPC: C08L95/00
Filed: 1929-12-02
Abstract: Coal tar is dehydrated and distilled up to 270 DEG  C. to remove the light oils and naphthalene.  The residue is stirred, at about 110 DEG C., into soap solution containing starch, at about 70-80 DEG  C., to produce an emulsion suitable for road-making.  Suitable ingredients and proportions are 3000 kgs. tar-product, 2700 kgs. water, 250 kgs. black soap, and 50 kgs. potato starch.  The emulsion may be homogenized.  The Specification as open to inspection under Sect. 91 (3) (a) refers to the use in combination of a surface tension-reducing agent and a protective colloid, which may comprise a gum, a p  natural or synthetic resin, or an albuminoid substance. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 243,398 and 305,742, [both in Class 81 (i), Disinfecting &c.].
Patent GB-1041838-A (GB)
Title: Boiler for the heating or vaporisation of a liquid medium
IPC: F22B9/04
Filed: 1963-09-20
Abstract: 1,041,838. Steam generators; liquid heaters. F. SCHOPPE. Sept. 20, 1963 [Sept. 24, 1962], No. 37169/63. Headings F4A and F4B. A boiler for heating or vaporizing a liquid medium, for example water, comprises a casing 1 containing a radiation space 2 and a convection section 3. The radiation space is divided into open-ended horizontal cells 4 by a tube wall having vertical sections 7b, 7d and sections 7a, 7c inclined equally to the horizontal and vertical tube end walls 6 which extend through the convection section. Fresh water is admitted to elastically suspended feed pipes connected to the pipes forming walls 6, 7 and steam is drawn through pipes 21 from pipes 10 which are connected to the upper section of wall 7 and pass through the convection section. The cells 4 are radiantly heated by liquid, gas or solid fuel burners 5 having conically expanding burning spaces starting at 5a which communicate with acceleration nozzles to impart a high velocity to the gases. Combustion gases emerge from the cells and pass upwards through passages 8 formed by the vertical sections of wall 7 and water conducting walls 9 and are then directed over tubes 10 by baffles 11 in the convection section before passing into the air preheater 13, the cold end of which is made of stainless steel, where the temperature of the gases is reduced below the dew point to enable a considerable part of the sulphur content to be extracted. Air is fed into the preheater through two inlets 14, 15 by a blower 16 and is passed tangentially into the burners. An ordinary regulator maintains the water level at A and varying this level varies the superheater temperature. To prevent water drops passing into the superheater part, filling bodies are inserted into pipes 10. The cells may be formed in a honeycomb arrangement having curved sides, Fig. 3 (not shown), or straight sides with burners at both ends.
Patent GB-1436965-A (GB)
Title: Preparation of salts of stilbene-azo and-azoxy dyes
IPC: C09B67/02
Filed: 1973-08-06
Abstract: 1436965 Stilbene-azo and stilbene azoxy dyes SANDOZ Ltd 6 Aug 1973 [8 Aug 1972] 37182/73 Heading C4P [Also in Division C2] Salts of stilbene-azo and stilbene-azoxy dyes which contain sulphonic acid groups and in which at least one cation per molecule is an ammonium cation, the remaining cations being selected from tetra (optionally substituted alkyl) ammonium and alkali metal cations, with the proviso that at least one SO 3 H group is in the tetralkyl-ammonium or alkali metal salt form, are prepared by condensing a salt of Formula I in the presence of an alkali metal hydroxide or a tetra (optionally substituted alkyl) ammonium hydroxide. Mixtures of dyes may also be produced. Nitro groups present in the product may simultaneously or subsequently be reduced to amino groups. Specified cations in addition to ammonium are lithium, sodium, potassium and tetramethylammonium. The reaction may be carried out in aqueous solution and at elevated temperature. Specified products, which give reddish-yellow, greenish-yellow and orange shades on paper, are mono- or tris-azo.
Patent GB-1583258-A (GB)
Title: Cubicle construction
IPC: E05D7/08
Filed: 1977-09-07
Abstract: The wall structure has a profile strip (11), with two receiving portions (16), and connection parts (21, 22) which have in each case one rotational guide (47, 48) for a coupling piece (49, 50) and engage into the receiving portions (16) by means of plug-in extensions (18, 19). By means of the coupling piece (49, 50), the connection parts (21, 22) are rotatably connected to in each case one support (57, 58) which has a corresponding receiving portion (59, 101) for the coupling piece (49, 50). As a result, the rotational or pivot connection of a door or the like to the wall structure can be easily produced. The cubicles can, in this manner, be assembled entirely by the modular-construction principle. <IMAGE>
Patent GB-1363538-A (GB)
Title: Fessora ma bonch-bruevicha electromechanical delay line
IPC: H03H9/125
Filed: 1972-08-10
Abstract: 1363538 Delay lines LENINGRADSKY ELEKTROTEKHNICHESKY INSTITUT SVYAZI IMENI PROFESSORA M A BONCHBRUEVICHA 10 Aug 1972 37341/72 Heading H3U In an electromechanical delay line having a carbon tool steel delay medium 1 supporting input and output lead zirconate titanate piezo transducers 2 fixed to medium 1 by a coupling medium 3 in the form of adhesive or a four component brazing solder, acoustic absorber 6 being provided, the ratios enumerated below are within the specified ranges (i) Acoustic resistance of transducer material/acoustic resistance of coupling medium = 0À55-0À95. (ii) Coupling medium thickness/wavelength in the coupling medium at transducer resonance frequency = 0À005-0À05. (iii) Area of each transducer/area of end face of delay medium = 0À75-1À00. Design of the delay line, for colour TV, radar, or computer applications makes use of the relation between delay line relative bandwidth (#f/f 0 ) and the ratio (ii) above, Fig. 3 (not shown), for given value of ratio (i), and that between the relative bandwidth and a disclosed factor # proportional to transducer area, and dependent upon the physical characteristics of the transducer material as well as the load resistance, Fig. 4 (not shown). For given choice of materials for coupling medium 3 and the transducers, defining in a disclosed manner the quantity (k 2-3 ), Fig. 3 (not shown), this empirical Figure gives a value for ratio (ii) giving a greatest value for the relative bandwidth.
Patent GB-1083496-A (GB)
Title: Centrifugal pumps
IPC: F04D29/22
Filed: 1964-09-11
Abstract: 1,083,496. Centrifugal pumps. T.E. JUDD. Sept. 11, 1964 [Sept. 13, 1963], No. 37350/64. Heading F1C. In a centrifugal pump for liquids and liquids containing solids, e.g. sewage and slurries, the front face of the impeller has vanes 27, and the rear face has sealing vanes 36 providing greater pumping action than vanes 27. The vanes 27 comprise primary vanes 27B alternating with radially shorter and axially narrower secondary vanes 27A. The front edges of the vanes 27 may lie in a plane perpendicular to the axis 32 but preferably are curved axially rearwardly as shown to avoid accumulation of solids. The impeller front face is convex and has a vane-free central area. The convex surface may be generated by rotating a part of a circle, ellipse, parabola, hyperbola or compound curve about the shaft axis.
Patent GB-655153-A (GB)
Title: Improvement in or relating to television receivers
IPC: H04N5/62
Filed: 1946-12-19
Abstract: 655,153. Multiplex radio signalling. BURGESS, A. F. (Parker,. L. W.). Dec. 19, 1946, No. 37431. [Class .40 (v)] [Also in Group XL (b)] A television receiver is provided with a selecting circuit preceding the detector and having a frequency characteristic such that both picture and sound carriers are passed to the detector. The detector demodulates the picture carrier, and mixes the two carriers so as to produce a beat frequency carrier for the sound signals. This arrangement ensures that unwanted interaction between the amplitude modulated picture signals and the frequency modulated sound signals is substantially eliminated. Fig. 1 shows a response curve for a receiver which passes both picture and sound carriers P, S to the detector, but in which the sound carrier operates near the bottom of the upper end of the response curve where the slope is substantially zero. In this manner the frequency modulated signals have little effect on the picture signals and if the amplitude of the sound carrier is limited to about 5 per cent of the picture carrier, a 90 per cent modulation of the picture carrier has no appreciable effect on the sound signals. Fig. 4 shows an idealized acceptance curve for the receiver, the sound signals being a frequency modulation on a carrier 4.5 Mc/s. higher than the carrier frequency of the amplitude modulated picture signal P. Both signals are fed to the detector the interaction of the two carrier frequencies produces a beat frequency of 4.5 Mc/s. Since the curve has zero slope at the point S only the picture signals will be detected and passed to a video amplifier, the sound signals being passed on to a frequency discriminator as a frequency modulation of the 4.5 Mc/s. beat frequency. The frequency characteristic of the selecting circuit may be made to correspond nearly to the idealized curve of Fig. 4 by combining the curves X and Y (Fig. 3). As shown in Fig. 5, the curve is derived by means of a broad band I.F., or R.F., coupling comprising inductance 21 and 24 between two valves 20 and 27 preceding the detector stage, and the curve Y is derived by means of an additional inductance 30 shunted by a resistor 31 and condenser 32 coupled to the I.F. or R.F. coupling.
Patent GB-1041630-A (GB)
Title: A composite writing utensil
IPC: B43K27/08
Filed: 1964-09-15
Abstract: 1,041,630. Combination ball-point pen; fountain pen. E. N. DORNA, and O. SANTACRUZ. Sept. 15, 1964, No. 37712/64. Heading B6P. A combination retractable ball-point pen and fountain pen comprises a fountain pen section A and a ball-point section B. The fountain pen section A has a barrel 2 which partly houses a replaceable ink cartridge 1. The ink cartridge is provided with a tubular extension 5, either integrally formed with the reservoir part of the cartridge, Fig. 6 (not shown), or separately formed to frictionally engage the rear end of the reservoir, Fig. 4 (not shown). The ball-point section B has a barrel 3 provided with internal screw-threads 10 which co-operate with external screw-threads 11 on the ball-point cartridge 6. The rear end of the ball-point cartridge 6 is provided with a radial lug 13 which engages an axial slot 14 in the tubular extension 5. Relative rotation of the two barrels 2 and 3 causes relative rotation of the ball-point cartridge 6 and the barrel 3 which either advances or retracts the ball-point. The barrels 2 and 3 are either connected with a bayonet joint which allows for a limited relative rotation, or both barrel rear portions are internally screwthreaded to engage external screw-threads provided on the fountain pen cartridge 1, Fig. 5 (not shown).
Patent GB-619749-A (GB)
Title: Method of generating an alternating current from a direct current or of influencing an alternating current
IPC: H02M11/00
Filed: 1946-12-24
Abstract: 619,749. Converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Dec. 24, 1946, No. 37819. Convention date, Dec. 29, 1945. [Class 38 (ii)] [Also in Groups XL (b) and XL (c)]. A.C. is varied or generated from D.C. in a circuit in which current passes through an inductor or analagous device in series with a resistor having a positive temperature coefficient and operating in a region where it has the characteristic that dI/dE is negative. Fig. 1 shows the EI characteristic b of a suitable resistor which may be of iron, nickel or tungsten, with the heat conducted away through metals such as iron or nickel. In Fig. 2 the resistor 6 is connected in series with inductor 5 across battery 4, and the A.C. voltage generated, which is superimposed on D.C. in resistor 6, is applied to a load 8 through blocking condenser 7. A capacitor may be connected in parallel with resistor 6, Fig. 3 (not shown), or a constant value resistor in series with resistor 6 may steepen the curve b. The A.C. may be withdrawn through a transformer, Fig. 4 (not shown), or second winding on reactor 5, Fig. 5 (not shown), or resistor 6 may be the load, e.g. a flash-lamp. The reactor 5 may be replaced by a thermo-negative resistor. If an A.C. source replaces the D.C. source, the output is A.C. of higher voltage.
Patent GB-845295-A (GB)
Title: Steroid compounds
IPC: C12P33/00
Filed: 1956-12-11
Abstract: 3 - Keto- D 4- androstene or - D 1, 4-androstadiene compounds are prepared by contacting a 3-oxygenated- D 5-androstene compound with the dehydrogenating activity of microorganisms of the genus Bacillus, especially B.sphaericus.
Patent GB-1064339-A (GB)
Title: Method and device for coating surfaces of plates, foils and like bodies
Inventor: SCHULZ ARMIN
IPC: B05C5/00
Filed: 1965-09-06
Abstract: In coating surfaces with a liquid contained in a trough the surface and the trough are moved relative to each other and the trough is pivoted so as to apply coating liquid to the surface; a coating of substantially uniform thickness being achieved by pivoting the trough in accordance with the quantity of coating liquid applied to the surface.  The trough is preferably pivoted by control means and coating liquid may be supplied to the trough during a coating operation by means for regulating the quantity of coating liquid supplied thereto.  Web or sheet material may be fed around a drum, the latter having a tiltable trough, the lip of which can be brought into contact with the surface of the web on the drum.  (Fig. 3, not shown).  Cleaning and heating means may be provided prior to the coating trough and drying means including hot air circulating means (Fig. 4, not shown) may be provided after the coating trough.
Patent GB-921193-A (GB)
Title: Improvements in coal mining machines
Inventor: SPROUL JOHN CONNEL
IPC: E21C27/12
Filed: 1958-11-26
Abstract: 921,193. Mining-machinery. MAVOR & COULSON Ltd. Nov. 17, 1959 [Nov. 26, 1958], No. 38043/58. Class 68 (1). In a machine for mining coal by the longwall system and having means for under-cutting and over-cutting the seam to part the coal from the mine floor and roof, a presser is arranged behind the cutting means to be displaced, during the progress of the machine, by the cut coal remaining attached to the seam, the displacement of the presser activating a power device which applies to the presser a powerful coal-breaking force. Any cutting means may be used, but as shown, the invention is applied to a machine with two endless chain cutters 10, 11 which are trained over aligned sprockets 7 and are guided in open frames 12, 13 to make four horizontal cuts and two substantially vertical cuts to leave unbroken coal bodies 25, 26, 27 attached to the seam ahead of the cutters. The base 30 of the machine is hauled in known manner along the side frames of a face conveyer 31. The presser assembly 40 is pivoted at 45 to the top of the frame 12, and includes an inclined girder member 41 attached to a heavy yoke 42 having plates 43 to abut against the roof. The presser assembly is slidably and hingedly connected to a box-like casing 44 which is hinged at 45 to the frame 12, the sliding being effected against compression springs 42 which yield, when the presser engages the coal bodies 25, 26, to permit the cutting means to continue to advance whilst the presser remains behind to effect the breaking of the coal. The girder 41 carries a coalengaging member 51 which is adjustably secured thereto, and an extension 52 connected by trunnions 56 to the ram 55 of an hydraulic cylinder 54. The ram is supported by a spring- telescopic assembly 63 connected to the ram by a gudgeon pin 67. When the presser is not engaging with cut coal, the cylinder 54, its side arm 69 and a valve-control head 79 are out of contact with the roof and the cylinder 54 and associated ram and telescopic support 63 are pulled over the floor on the skid 61. When the coal bodies 25, 26 are engaged, the presser assembly 40 is lifted thereby until the cylinder 54 and the valve-control head 79 engage the roof, the valve 70 being thus actuated to admit pressure fluid to the cylinder 54 to force down the ram 55, the extension 52 and the members 51, 42 to break off the bodies 25, 26. A presser 90 pivoted at 93 to the bottom limb of the frame 12 comprises a pair of guide rods 94 on which a strong angle section is slidable against springs 95, whereby the angle section may remain behind, when held frictionally by the coal body, whilst the cutting means continue to advance. The body 26 acts through the presser 90 to break down the body 27. A scraper-type loader conveyer 102 extends cross-wise behind the frame 12, a back plate 105 extending upwardly and rearwardly directing coal on to the conveyer. A ramp at the side of the conveyer shovels coal from the floor on to the conveyer as the machine is hauled along.
Patent GB-840039-A (GB)
Title: Improvements in or relating to soluble silicates
Inventor: HURT NORMAN ALBERT
IPC: C01B33/32
Filed: 1956-12-13
Abstract: The iron content of soluble alkali metal silicates is reduced by treating an aqueous solution thereof with an oxidizing agent and with a substance which will precipitate an insoluble silicate, and thereafter filtering the treated solution.  Suitable precipitants include the soluble salts of calcium, strontium, barium and magnesium, and ammonium titanate or molybdate. Stannic oxides or hydroxides of the alkaline earth metals may similarly be used, generally in the form of a slurry.  Oxidizing agent such as peroxides or hypochlorites may be employed normally in amounts between 0.001 and 0.01%, whilst substances such as calcium hypochlorite and alkaline earth and magnesium peroxides may be employed both as an oxidizing and a precipitating agent; the preferred reagent of this type being calcium, strontium, barium or magnesium peroxide.  The reaction is prefeably effected at a temperature above 90 DEG  C. such that the vapour pressure of the solution is from 2 to 2.2 kg/cm.2. The solution may be filtered if desired with the assistance of a filter aid such as diatomaceous earth.  According to a typical example a solution of sodium silicates (SiO2: Na2O ratio of 3.30: 1) having a specific gravity of 1.265 and an iron content of 96 p.p.m. was treated in a pressure vessel with calcium peroxide after cooling and filtering the SiO2:Na2O ratio was 3.27: 1 and the iron content was reduced to 23 p.p.m. of solution.